67 lines
4.0 KiB
HTML
67 lines
4.0 KiB
HTML
<?xml version="1.0" encoding="utf-8"?>
|
|
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
|
|
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
|
|
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US" xml:lang="en-us">
|
|
<head>
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
|
|
<meta name="dc.language" scheme="rfc1766" content="en-us" />
|
|
<!-- All rights reserved. Licensed Materials Property of IBM -->
|
|
<!-- US Government Users Restricted Rights -->
|
|
<!-- Use, duplication or disclosure restricted by -->
|
|
<!-- GSA ADP Schedule Contract with IBM Corp. -->
|
|
<meta name="dc.date" scheme="iso8601" content="2005-10-03" />
|
|
<meta name="copyright" content="(C) Copyright IBM Corporation 1998, 2006" />
|
|
<meta name="security" content="public" />
|
|
<meta name="Robots" content="index,follow"/>
|
|
<meta http-equiv="PICS-Label" content='(PICS-1.1 "http://www.icra.org/ratingsv02.html" l gen true r (cz 1 lz 1 nz 1 oz 1 vz 1) "http://www.rsac.org/ratingsv01.html" l gen true r (n 0 s 0 v 0 l 0) "http://www.classify.org/safesurf/" l gen true r (SS~~000 1))' />
|
|
<title>Considerations for network attributes that can affect APPC error recovery</title>
|
|
<link rel="stylesheet" type="text/css" href="ibmidwb.css" />
|
|
<link rel="stylesheet" type="text/css" href="ic.css" />
|
|
</head>
|
|
<body>
|
|
<a id="Top_Of_Page" name="Top_Of_Page"></a><!-- Java sync-link -->
|
|
<script language = "Javascript" src = "../rzahg/synch.js" type="text/javascript"></script>
|
|
|
|
|
|
<a name="rzahjerr-comnetattref"></a>
|
|
<h4 id="rzahjerr-comnetattref">Considerations for network attributes that can affect APPC error recovery</h4>
|
|
<p><span class="bold">Network attributes</span> control information about the
|
|
communications environment. Allow APPN virtual controller support (ALWVRTAPPN),
|
|
and virtual controller autocreate APPC device limit (VRTAUTODEV) are network
|
|
attributes that play a role when a communications error occurs.</p>
|
|
<p>The following information explains more about each network attribute and
|
|
how the attribute affects system performance during error recovery.</p>
|
|
<ul>
|
|
<li>Allow APPN virtual controller support (ALWVRTAPPN) controls whether APPN
|
|
devices should be attached to real APPN controllers, or to a virtual controller.
|
|
<ul>
|
|
<li>The default value is *NO.</li>
|
|
<li>Use virtual APPN controllers to limit the number of devices that go into
|
|
error recovery when a failure occurs.</li>
|
|
<li>May be used to eliminate multiple device descriptions that can get created
|
|
when multiple routes through the APPN network exist.</li></ul></li>
|
|
<li>Virtual controller autocreate APPC device limit (VRTAUTODEV) indicates
|
|
the maximum number of automatically created APPC devices for each virtual
|
|
controller when the following is true:
|
|
<ul>
|
|
<li>The Allow APPN Virtual Controller (ALWVRTAPPN) network attribute is *YES.</li>
|
|
<li>The Allow HPR Transport Tower (ALWHPRTWR) network attribute is *YES.</li></ul>
|
|
<p> The VRTAUTODEV network attribute specifies the upper limit for the
|
|
number of automatically created APPC devices on virtual controllers. The more
|
|
APPC devices created, the longer it takes the system to do error recovery
|
|
processing on the controller. The default value on this network attribute
|
|
is 100. For every 100 new APPN locations that your system communicates, a
|
|
new virtual APPN controller is created.</p>
|
|
<a name="wq32"></a>
|
|
<div class="notetitle" id="wq32">Note:</div>
|
|
<div class="notebody">Manually created devices
|
|
may still be created if the VRTAUTODEV parameter value is less than the limit
|
|
of 254.</div></li></ul>
|
|
<p>For more information about these system values, see the following books:</p>
|
|
<ul>
|
|
<li>For more information about iSeries™ communications, see the <a href="../books/sc415406.pdf" target="_blank">Communications Management</a> and <a href="../rzaks/rzaks.pdf" target="_blank">Work Management</a>
|
|
<img src="wbpdf.gif" alt="Link to PDF" /> books.</li></ul>
|
|
<a id="Bot_Of_Page" name="Bot_Of_Page"></a>
|
|
</body>
|
|
</html>
|